roll up vs hoard

roll up is not a noun while hoard is a noun.

Word	Noun	Adjective	Verb	Adverb
roll up	No	No	Yes	No
hoard	Yes	No	Yes	No

As verbs, roll up and hoard are synonyms defined as:

Other synonyms of roll up include accumulate, amass, collect, compile, pile up.

roll up (noun)	hoard (noun)
	a secret store of valuables or money

roll up (verb)	hoard (verb)
form a cylinder by rolling	get or gather together
form into a cylinder by rolling	save up as for future use
show certain properties when being rolled
make into a bundle
close (a car window) by causing it to move up, as with a handle
arrive in a vehicle:
get or gather together